A Factory Acceptance Test (FAT) is a critical step in ensuring that fire pump systems meet performance, safety, and compliance requirements before shipment. As a manufacturer of UL listed and NFPA 20 compliant fire pumps, we understand that clients, consultants, and authorities need complete confidence in the reliability of the fire protection system. This article provides a detailed look at what is required in a fire pump FAT, the international standards that guide the process, and the documentation that customers should expect.